PROBLEM TO BE SOLVED: To provide a power conversion apparatus capable of performing appropriate current control both in a normal state and in an abnormal state.SOLUTION: The power conversion apparatus 100B comprises: a first inverter 110 for connecting to one end of a winding of each phase of a motor 200; a second inverter 140 for connecting to the other end of the winding of each phase; a phase separation relay circuit 120 for switching connection and disconnection between one end of the winding of each phase and the first inverter; a neutral point relay circuit 130 that is connected to one end of the winding of each phase and that switches connection and disconnection between one ends of the windings of each phase; a first switch element 801 for switching connection/disconnection between the second inverter and the power supply 101; and a second switch element 802 for switching connection/disconnection between the second inverter and the ground.SELECTED DRAWING: Figure 13

    【課題】正常時および異常時のいずれにおいても適切な電流制御が可能となる電力変換装置を提供する。【解決手段】電力変換装置100Bは、モータ200の各相の巻線の一端に接続される第1インバータ110と、各相の巻線の他端に接続される第2インバータ140と、各相の巻線の一端と第1インバータとの接続および非接続を切替える相分離リレー回路120と、各相の巻線の一端に接続され、かつ、各相の巻線の一端同士の接続および非接続を切替える中性点リレー回路130と、第2インバータと電源101との接続・非接続を切替える第1スイッチ素子801と、第2インバータとグランドとの接続・非接続を切替える第2スイッチ素子802と、を有する。【選択図】図13


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    Titel :

    POWER CONVERSION APPARATUS, MOTOR DRIVE UNIT, AND ELECTRIC POWER STEERING APPARATUS


    Weitere Titelangaben:

    電力変換装置、モータ駆動ユニット、および電動パワーステアリング装置


    Beteiligte:
    WADA EIJI (Autor:in) / OHASHI HIROMITSU (Autor:in)

    Erscheinungsdatum :

    2018-07-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B62D MOTOR VEHICLES , Motorfahrzeuge





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